Firearm.



T. C. JOHNSON.

FIREARM.

APPLICATION FILED APR.20. 191s.

Patented July 18, 1916.

UNITED STATES PATENT orrron.

THOMAS C. JOHNSON, OF NEW HAVEN, CONNECTICUT, AS$IGNOR TO WINCHESTER REPEATING ARMS 00., OF NEW HAVEN, CONNECTICUT, A CORPORATION.

FIREARM.

Specification of Letters Patent.

Patented July 18, 1916.

To all whom it may concern Be it known that I, THOMAS C. JOHNSON, a citizen of the United States, residing at New Haven, in the county of New Haven and State of Connecticut, have invented a new and useful Improvement in Firearms; and I do hereby declare the following, when taken in connection with the accompanylng drawings and the characters of reference marked thereon, to be a full, clear, and c;- act description of the same, and which said drawings constitute part of this apphcatlon and represent, in

Figure 1 a broken view in right hand side elevation of the middle portion of a firearm constructed in accordance with my invention. Fig. 2 a similar view partly in vertical longitudinal section. Fig. 3 a detached view in front elevation of the receiver-extension. Fig. 4 a detached view in rear elevation of the barrel and forearm. Fig. 5 a detached plan view of the take-up plunger socket. Fig. 6 a corresponding view of the take-up plunger itself.

My invention relates to an improvement in take-down firearms, the object being to provide simple, reliable and effective means for taking up play or shake which may result from the wearing of the thread by means of which the barrel is screwed into the receiver or which may proceed from any other cause.

Vith these ends in view, my invention consists in a take-down firearm provided with a takeup having certain details of construction as will be hereinafter described and pointed out in the claims.

In carrying out my invention as herein shown,'l[ employ a take-up plunger 2 having a hollow stem 3 and located in the chamber 4. of a socket 5 which is driven into a bore 6 formed in the rear end of the forearm 7. The stem 3 of the plunger 2 is encircled by a very heavy spring 8 interposed between the bottom of the said chamber 4: andv the shoulder 9 of the plunger 2. The plunger is secured in place in the socket 5 by means of a pin 10 passing through openings 11 in the socket, and through a slightly larger opening 12 in the plunger, the opening 12 being enough larger in diameter than the pin 10 to permit the plunger to have a very slight longitudinal movement in the socket. When the gun is taken down, the plunger 2 is moved by the spring 8 so as to project a trifle beyond the rear face 13 of the fore- 21 for the reception of a take-down screw 22 mounted in the lower portion of the receiver extension 16. As shown, the forward end of the guard 23 is secured to the receiver-extension 16 by means of a screw 24. At its rear or open end the socket 5 is knurled as at 25 to hold it in place in the bore 6 of the forearm 7. As herein shown, the forestock 7 is rigidly connected with the barrel 19 by means of a screw 26 passing upward from the lower face of the forestock into a tie-block 27 dovetailed into an undercut groove 28 formed transversely in the lower face of the barrel, the head of the screw being seated in an escutcheon 30 set into the lower face of the forestock.

hen the gun is taken down and put together the face 11 of the plunger rides over the face 15 of the receiver-extension in a circular path, the stiff spring 8 being compressed at this time sufficiently to permit the necessary retirement of the plunger in the forestock. In case, however, the threads 18 of the barrel 19 should wear, or for any other reason the barrel should have even the slightest play or shake, then the plunger 2 under the influence of its heavy spring 8 will take up this play automatically. The receiver-extension 16 is to be regarded as a part of the receiver, and the term receiver as used in the claims is to be understood as covering the receiver whether provided with a receiver-extension of the form shown or some other form or as constructed without the receiver-extension. My present inven tion relates to a takeup of the character. described for use in a take-down gun, and is not limited to a take-down gun of the particular form herein shown.

I claim 1. A take-down firearm having the rear with a yielding characterized by end of 1ts forearm provided take-up plunger for fr1ctional engagement with the forward portion of the receiver of the arm for automatically taking up any shake in the take-down connection between the barrel and the receiver.

2. In a take-down firearm, the combination with the receiver thereof, of a barrel screwed thereinto, a forearm, a socket located in the rear end of the forearm, and a spring-actuated plunger located in the said socket and adaptedto engage with the forward portion of the receiver for taking up.

any shake in the connection between the barrel and receiver.

Copies of this patent may be THOMAS C. JOHNSON.

obtained for five cents each, by addressing the Commissioner of Patents,

Washington, I). G. 

